Science-Backed Ways to Promote Long-Term Fat Loss

Written by Clark on November 22, 2024 — Medically Reviewed by Clark

Science-backed methods for fat loss

Fat loss, as with any type of weight loss, is considered by most people as a difficult and laborious process. It demands time, dedication and hard work as well as perseverance. As you now know, there are numerous shortcuts such as diet pills, fat burners, and other products that claim to help you achieve the perfect body within a short span of time, but the real deal behind the fat burning campaigns involves a combination of changes to your diet, lifestyle as well as exercise habits.

Here are some scientifically-supported ways to promote long-term fat loss:

1. Start Strength Training

In fat loss, strength training or resistance training where working muscles push against a weight or some form of resistance is crucial. This type of exercise is not only to increase muscle strength but also to gain general strength over the period which frequently includes weight training.

According to a systematic review of 58 works published in 2021, resistance training can help lose at least 1.46% of body weight in 4 weeks. This type of training has been proved to decrease body fat and visceral adiposity, the dangerous fat located around the organs, escalating the risk of diseases such as diabetes and heart disease.

For example, the Physical Activity Guidelines for Americans recommend doing two sessions a week of strength training as well as moderate aerobic activity at a moderate level for 150 minutes per day. If you want to kick-start your training regime, you may use body weight, weight training or gym equipment.

2. Follow a High-Protein Diet

Increasing your intake of protein-rich foods can support fat loss in multiple ways, including:

  • Maintaining lean muscle mass
  • Reducing levels of hunger or appetite so that the people feel full.
  • Boosting metabolism
  • Thermogenesis increased (The energy used in break down of proteins)

That means between 10 to 35% of your total daily calorie intake should be made up of protein, according to the Dietary Guidelines for Americans. For 2,000 calorie intake it ranges from 50 to 175 grams of proteins per day for the same. A greater number of grams of protein consumed more generally and especially towards the top of this range has been associated with more weight loss.

The best sources of protein are lean meats, fish, cheese and yogurt, eggs, beans and tofu.

3. Get More Sleep

Sleep is an important component in the process of losing weight. Studies show, sleep loss may be involved in fat deposition through its impact on hormones that control hunger making people take more food and unhealthy snacks.

The 2023 study showed that patients with less than 6 hours per night sleep are likely to have increased amount of visceral fat. According to the CDC or the Centers for Disease Control and Prevention, adults should get not less than seven hours of sleep each night in order to be healthy and maintain a healthy weight.

To make your sleep better, you have to go to bed at the same time every day, avoid coffee after the afternoon and avoid using electronic devices before going to bed.

4. Eat More Healthy Fats

This may sound paradoxical, but it is certainly true – to lose fat, you should consume more of ‘healthy fats’. There is a 2023 update that indicated that people who are in the Mediterranean diet, foods rich in healthy fat such as olive oil, fish and nuts lose more weight and have better BMI as compared to those who are not on the diet.

In the same way, a 2022 study on individuals with high cholesterol prove that consumption of the unsaturated fats aided in minimizing body fat, body composition and even somewhat contribute to lean muscle mass. Some of the healthy fats are; olive oil, avocados, nuts and seeds.

However, moderate intake of unsaturated fats is recommended since the fats contribution to the number of calories in foods is relatively high. Eliminating foods fried in oil and using products made from unsaturated fats will go a long way in the burning of fat.

5. Drink Unsweetened Beverages

Avoiding intake of sugary drinks and opting for the unsweetened versions can make an even bigger difference in the amount of fat being shed off. Soft drinks contain calories and additional sugar without any nutritive value whatsoever. A systematic review on 85 articles in 2023 concluded that sugar sweetened beverages are associated with increased weight change and raised BMI.

Furthermore, alcohol contain many calories, and it is one of the ways by which people tend to gain belly fat.Another effect which is brought about by alcohol is the loss of the inhibitory factors hence causing over eating. To therefore, stick to the general guidelines for fat loss, limit your consumption of drinks to water, sparkling water, and unsweetened tea. Adding citruses, cucumber or mint to the water makes it tastier unlike having to add sugar to it.

6. Fill Up on Fiber

Fiber is important for fat loss, particularly soluble fiber because, it slows down digestion and reduce chances of eating more food than recommended. A review in 2020 indicated that, boosting the daily intake of soluble fiber can decrease the levels of body weight and belly fat irrespective of caloric consumption.

According to the Dietary Guidelines for Americans, adult women are supposed to have 28 grams of fiber per day while adult men – 34 grams. Meals rich in dietary fibre include fruits and vegetables, legumes, whole grain products, and nuts.

7. Choose Whole Grains Instead of Refined Grains

Refined grains include white bread, pastries, most breakfast cereals and rolled oats, that have been processed to exclude most of their nutrients and fiber. TThis leads to a high Glycemix Index GI value which actually cause fluctuations in blood sugar level and intensifies hunger.

A systematic review done in 2021 stated that foods like whole grains, whose fiber, vitamins, minerals and phytonutrients have not been removed, aid in weight loss because they do not make you feel as hungry as refined grains do and also because they do not spike your blood sugar the way refined grains do. Consuming whole grains rather than refined grains like wheat, quinoa, oats, and barley can help in weight and abdominal fat control. 

8. Boost Your Cardio

Cardio, or aerobic exercise, is another significant form of exercise for fat loss. A 2022 meta-analysis on 15 studies concluded that an increase in aerobic exercise would also lead to a decrease in waist circumference, which reflects lower belly fat. In another study in 2023, combining aerobic exercise with strength training reduced body fat percentage, body weight, and helped to maintain better markers for heart health.

The Physical Activity Guidelines for Americans recommend moderate to vigorous aerobic activity, 150 to 300 minutes per week, or a minimum of 75 minutes of vigorous exercise. Cardio activities should include walking, running, swimming, or cycling.

9. Drink Coffee

Caffeine — particularly in the form of coffee — can boost fat loss by stimulating your central nervous system, which increases both metabolism and fat breakdown. A 2023 study provides evidence that caffeine also aids fat burning for sedentary individuals performing aerobic exercises.

For coffee to give you all its benefits, refrain from excessive cream or sugar and use black coffee or some milk only.

10. Do some HIIT (high-intensity interval training)

High-Intensity Interval Training (HIIT) switches between quick tough workouts and short rest breaks. According to a 2023 review of 36 studies, HIIT itself can help decrease body fat percentage, enhance body composition, and maintain muscle mass.

Cycling-based HIIT programs have an impact on fat loss. You can start by switching between walking, jogging, or sprinting in short bursts, or do exercises like burpees, squats, or pushups.

11. Add Probiotics to Your Diet

The good bacteria in your gut — probiotics — promote fat loss especially of visceral fat. A 2024 study found that the Bifidobacterium probiotics helped shrink body fat percentage and waist size, but didn’t change BMI or body weight much.

Foods rich in the probiotics include kefir, kimchi, kombucha, sauerkraut, and tempeh. You can also take probiotic pills that will boost gut health and burn fat.

12. Try Intermittent Fasting

Intermittent fasting, which means switching between eating and not eating, can help you eat fewer calories. The 16/8 method is the most common way where you eat for 8 hours and don’t eat for 16 hours.

A 2024 study showed that intermittent fasting might help reduce body fat percentage, body weight, waist size, and belly fat. Keep in mind that intermittent fasting might not work for everyone especially people with hormone issues or athletes.

The Bottom Line

To achieve the sustainable fat loss, it’s important to avoid extreme diets or unsafe supplements. Instead, concentrate on making gradual, long-term adjustments to your diet and lifestyle. Include strength training, increase your intake of fiber and whole grains, swap out sugary drinks, and strive for a balanced exercise routine. These changes can promote healthy, effective, and lasting fat loss.

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